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@ -388,8 +388,7 @@ static void opts_add_refish(struct merge_options *opts, const char *refish) {
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}
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}
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static int resolve_heads(git_repository *repo, struct merge_options *opts)
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{
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static int resolve_heads(git_repository *repo, struct merge_options *opts) {
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git_annotated_commit **annotated = (git_annotated_commit **)calloc(opts->heads_count, sizeof(git_annotated_commit *));
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size_t annotated_count = 0, i;
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int err = 0;
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@ -414,8 +413,7 @@ static int resolve_heads(git_repository *repo, struct merge_options *opts)
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return 0;
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}
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static int perform_fastforward(git_repository *repo, const git_oid *target_oid, int is_unborn)
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{
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static int perform_fastforward(git_repository *repo, const git_oid *target_oid, int is_unborn) {
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// git_checkout_options ff_checkout_options = GIT_CHECKOUT_OPTIONS_INIT;
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git_checkout_options ff_checkout_options;
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@ -433,158 +431,173 @@ static int perform_fastforward(git_repository *repo, const git_oid *target_oid,
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const char *symbolic_ref;
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git_reference *head_ref;
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/* HEAD reference is unborn, lookup manually so we don't try to resolve it */
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err = git_reference_lookup(&head_ref, repo, "HEAD");
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if (err != 0) {
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fprintf(stderr, "failed to lookup HEAD ref\n");
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return -1;
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/* HEAD reference is unborn, lookup manually so we don't try to resolve it */
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err = git_reference_lookup(&head_ref, repo, "HEAD");
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if (err != 0) {
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qCritical() << HEADER << "failed to lookup HEAD ref";
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return -1;
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}
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/* Grab the reference HEAD should be pointing to */
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symbolic_ref = git_reference_symbolic_target(head_ref);
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/* Create our master reference on the target OID */
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err = git_reference_create(&target_ref, repo, symbolic_ref, target_oid, 0, NULL);
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if (err != 0) {
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qCritical() << HEADER << "failed to create master reference";
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return -1;
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}
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git_reference_free(head_ref);
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} else {
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/* HEAD exists, just lookup and resolve */
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err = git_repository_head(&target_ref, repo);
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if (err != 0) {
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qCritical() << HEADER << "failed to get HEAD reference";
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return -1;
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}
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}
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/* Grab the reference HEAD should be pointing to */
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symbolic_ref = git_reference_symbolic_target(head_ref);
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/* Create our master reference on the target OID */
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err = git_reference_create(&target_ref, repo, symbolic_ref, target_oid, 0, NULL);
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/* Lookup the target object */
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err = git_object_lookup(&target, repo, target_oid, GIT_OBJECT_COMMIT);
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if (err != 0) {
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fprintf(stderr, "failed to create master reference\n");
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return -1;
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qCritical() << HEADER << QString("failed to lookup OID %s").arg(git_oid_tostr_s(target_oid));
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return -1;
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}
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git_reference_free(head_ref);
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} else {
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/* HEAD exists, just lookup and resolve */
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err = git_repository_head(&target_ref, repo);
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/* Checkout the result so the workdir is in the expected state */
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ff_checkout_options.checkout_strategy = GIT_CHECKOUT_SAFE;
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err = git_checkout_tree(repo, target, &ff_checkout_options);
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if (err != 0) {
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fprintf(stderr, "failed to get HEAD reference\n");
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return -1;
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qCritical() << HEADER << "failed to checkout HEAD reference";
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return -1;
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}
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}
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/* Lookup the target object */
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err = git_object_lookup(&target, repo, target_oid, GIT_OBJECT_COMMIT);
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if (err != 0) {
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fprintf(stderr, "failed to lookup OID %s\n", git_oid_tostr_s(target_oid));
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return -1;
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}
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/* Move the target reference to the target OID */
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err = git_reference_set_target(&new_target_ref, target_ref, target_oid, NULL);
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if (err != 0) {
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qCritical() << HEADER << "failed to move HEAD reference";
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return -1;
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}
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/* Checkout the result so the workdir is in the expected state */
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ff_checkout_options.checkout_strategy = GIT_CHECKOUT_SAFE;
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err = git_checkout_tree(repo, target, &ff_checkout_options);
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if (err != 0) {
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fprintf(stderr, "failed to checkout HEAD reference\n");
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return -1;
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}
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git_reference_free(target_ref);
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git_reference_free(new_target_ref);
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git_object_free(target);
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/* Move the target reference to the target OID */
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err = git_reference_set_target(&new_target_ref, target_ref, target_oid, NULL);
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if (err != 0) {
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fprintf(stderr, "failed to move HEAD reference\n");
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return -1;
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}
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git_reference_free(target_ref);
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git_reference_free(new_target_ref);
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git_object_free(target);
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return 0;
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return 0;
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}
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static void output_conflicts(git_index *index)
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{
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git_index_conflict_iterator *conflicts;
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const git_index_entry *ancestor;
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const git_index_entry *our;
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const git_index_entry *their;
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int err = 0;
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static void output_conflicts(git_index *index) {
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git_index_conflict_iterator *conflicts;
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const git_index_entry *ancestor;
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const git_index_entry *our;
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const git_index_entry *their;
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int err = 0;
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check(git_index_conflict_iterator_new(&conflicts, index), "failed to create conflict iterator", NULL);
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check(git_index_conflict_iterator_new(&conflicts, index), "failed to create conflict iterator", NULL);
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while ((err = git_index_conflict_next(&ancestor, &our, &their, conflicts)) == 0) {
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fprintf(stderr, "conflict: a:%s o:%s t:%s\n",
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ancestor ? ancestor->path : "NULL",
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our->path ? our->path : "NULL",
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their->path ? their->path : "NULL");
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}
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while ((err = git_index_conflict_next(&ancestor, &our, &their, conflicts)) == 0) {
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qCritical() << HEADER
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<< QString("conflict: a:%s o:%s t:%s")
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.arg(ancestor ? ancestor->path : "NULL")
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.arg(our->path ? our->path : "NULL")
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.arg(their->path ? their->path : "NULL");
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}
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if (err != GIT_ITEROVER) {
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fprintf(stderr, "error iterating conflicts\n");
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}
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if (err != GIT_ITEROVER) {
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qCritical() << HEADER << "error iterating conflicts";
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}
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git_index_conflict_iterator_free(conflicts);
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git_index_conflict_iterator_free(conflicts);
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}
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static int create_merge_commit(git_repository *repo, git_index *index, struct merge_options *opts)
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{
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git_oid tree_oid, commit_oid;
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git_tree *tree;
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git_signature *sign;
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git_reference *merge_ref = NULL;
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git_annotated_commit *merge_commit;
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git_reference *head_ref;
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git_commit **parents = (git_commit **)calloc(opts->annotated_count + 1, sizeof(git_commit *));
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const char *msg_target = NULL;
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size_t msglen = 0;
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char *msg;
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size_t i;
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int err;
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static int create_merge_commit(git_repository *repo, git_index *index, struct merge_options *opts) {
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git_oid tree_oid, commit_oid;
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git_tree *tree;
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git_signature *sign;
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git_reference *merge_ref = NULL;
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git_annotated_commit *merge_commit;
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git_reference *head_ref;
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git_commit **parents = (git_commit **)calloc(opts->annotated_count + 1, sizeof(git_commit *));
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/* Grab our needed references */
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check(git_repository_head(&head_ref, repo), "failed to get repo HEAD", NULL);
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if (resolve_refish(&merge_commit, repo, opts->heads[0])) {
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fprintf(stderr, "failed to resolve refish %s", opts->heads[0]);
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free(parents);
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return -1;
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}
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if (!parents) {
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qCritical() << HEADER << 'calloc failed';
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return -1;
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}
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/* Maybe that's a ref, so DWIM it */
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err = git_reference_dwim(&merge_ref, repo, opts->heads[0]);
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check(err, "failed to DWIM reference", git_error_last()->message);
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const char *msg_target = NULL;
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size_t msglen = 0;
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char *msg;
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size_t i;
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int err;
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/* Grab a signature */
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check(git_signature_now(&sign, "Me", "me@example.com"), "failed to create signature", NULL);
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/* Grab our needed references */
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check(git_repository_head(&head_ref, repo), "failed to get repo HEAD", NULL);
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if (resolve_refish(&merge_commit, repo, opts->heads[0])) {
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qCritical() << HEADER << QString("failed to resolve refish %s").args(opts->heads[0]);
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free(parents);
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return -1;
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}
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/* Maybe that's a ref, so DWIM it */
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err = git_reference_dwim(&merge_ref, repo, opts->heads[0]);
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check(err, "failed to DWIM reference", git_error_last()->message);
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/* Grab a signature */
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check(git_signature_now(&sign, "Me", "me@example.com"), "failed to create signature", NULL);
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#define MERGE_COMMIT_MSG "Merge %s '%s'"
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/* Prepare a standard merge commit message */
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if (merge_ref != NULL) {
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check(git_branch_name(&msg_target, merge_ref), "failed to get branch name of merged ref", NULL);
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} else {
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msg_target = git_oid_tostr_s(git_annotated_commit_id(merge_commit));
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}
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/* Prepare a standard merge commit message */
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if (merge_ref != NULL) {
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check(git_branch_name(&msg_target, merge_ref), "failed to get branch name of merged ref", NULL);
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} else {
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msg_target = git_oid_tostr_s(git_annotated_commit_id(merge_commit));
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}
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msglen = snprintf(NULL, 0, MERGE_COMMIT_MSG, (merge_ref ? "branch" : "commit"), msg_target);
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if (msglen > 0) msglen++;
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msg = (char *)malloc(msglen);
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err = snprintf(msg, msglen, MERGE_COMMIT_MSG, (merge_ref ? "branch" : "commit"), msg_target);
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msglen = snprintf(NULL, 0, MERGE_COMMIT_MSG, (merge_ref ? "branch" : "commit"), msg_target);
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if (msglen > 0) {
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msglen++;
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}
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/* This is only to silence the compiler */
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if (err < 0) goto cleanup;
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if ((msg = (char *)malloc(msglen)) == nullptr) {
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qCritical() << HEADER << 'malloc failed';
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goto cleanup;
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}
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/* Setup our parent commits */
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err = git_reference_peel((git_object **)&parents[0], head_ref, GIT_OBJECT_COMMIT);
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check(err, "failed to peel head reference", NULL);
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for (i = 0; i < opts->annotated_count; i++) {
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git_commit_lookup(&parents[i + 1], repo, git_annotated_commit_id(opts->annotated[i]));
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}
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err = snprintf(msg, msglen, MERGE_COMMIT_MSG, (merge_ref ? "branch" : "commit"), msg_target);
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/* Prepare our commit tree */
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check(git_index_write_tree(&tree_oid, index), "failed to write merged tree", NULL);
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check(git_tree_lookup(&tree, repo, &tree_oid), "failed to lookup tree", NULL);
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/* This is only to silence the compiler */
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if (err < 0) {
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goto cleanup;
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}
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/* Commit time ! */
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err = git_commit_create(&commit_oid,
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repo, git_reference_name(head_ref),
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sign, sign,
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NULL, msg,
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tree,
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opts->annotated_count + 1, (const git_commit **)parents);
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check(err, "failed to create commit", NULL);
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/* Setup our parent commits */
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err = git_reference_peel((git_object **)&parents[0], head_ref, GIT_OBJECT_COMMIT);
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check(err, "failed to peel head reference", NULL);
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for (i = 0; i < opts->annotated_count; i++) {
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git_commit_lookup(&parents[i + 1], repo, git_annotated_commit_id(opts->annotated[i]));
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}
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/* We're done merging, cleanup the repository state */
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git_repository_state_cleanup(repo);
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/* Prepare our commit tree */
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check(git_index_write_tree(&tree_oid, index), "failed to write merged tree", NULL);
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check(git_tree_lookup(&tree, repo, &tree_oid), "failed to lookup tree", NULL);
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/* Commit time ! */
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err = git_commit_create(&commit_oid,
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repo, git_reference_name(head_ref),
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sign, sign,
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NULL, msg,
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tree,
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opts->annotated_count + 1, (const git_commit **)parents);
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check(err, "failed to create commit", NULL);
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/* We're done merging, cleanup the repository state */
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git_repository_state_cleanup(repo);
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cleanup:
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free(parents);
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return err;
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free(parents);
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return err;
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}
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static int merge(git_repository *repo) {
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